An HIV test checks whether you have been infected with the human immunodeficiency virus. Modern tests are highly accurate, and early diagnosis means HIV can be treated so effectively that people live long, healthy lives.
| Measure | Range |
|---|---|
| Non-reactive (negative) | No HIV antibodies/antigen detected |
| Reactive (positive) | Needs a confirmatory test before diagnosis |
| Window period | Up to ~4–12 weeks depending on the test |
| 4th-generation test | Detects antigen + antibody (earlier detection) |
It depends on the test. Modern 4th-generation tests can detect HIV from about 2–4 weeks, but a test at 6–12 weeks (or as your provider advises) gives the most reliable result.
No. A reactive screening test must be confirmed with a second, different test. Diagnosis is only made after confirmation.
Yes. Testing is confidential, and in India free testing and counselling are available at ICTC centres. Early diagnosis allows very effective treatment.
Reviewed by Dr. Sanjay Anbu, MBBS. MedDroid is an AI medical assistant and can make mistakes. It provides general health information, not a diagnosis or medical advice — always consult a qualified clinician. In an emergency, contact your local emergency number immediately.